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Erschienen in:
2005 | OriginalPaper | Buchkapitel
Lecture Notes in Computer Science: Numerical Visualization of Flow Instability in Microchannel Considering Surface Wettability
verfasst von : Doyoung Byun, Budiono, Ji Hye Yang, Changjin Lee, Ki Won Lim
Erschienen in: Fuzzy Systems and Knowledge Discovery
Verlag: Springer Berlin Heidelberg
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Recently, researches of microfluidics have been widely studied, because microfluidic systems have been used in several fields such as lab-on-a-chip in medicine, colloid thruster in aerospace, microhydrodynamic in engineering, etc. To handle and control the liquid in the microsystems, the hydrophobic and hydrophilic characteristics on a surface are very important properties. In this study, we performed numerical visualization to investigate the effect of surface wettability in microchannel on the flow characteristics. For the hydrophilic and hydrophobic surfaces arrangement, when the flow reaches the interface region, the meniscus shape changes from concave to convex and the velocity near the centre increases. We can present more efficient method to control the microflow in several micofluidic systems.